Doctor Who met space zombies on tonight's episode – and viewers were shocked by a big bombshell

Doctor Who went into outer space on this week's (May 13) episode 'Oxygen', complete with everything from space zombies to a chilling vision of the future.

In the episode, the Doctor, Bill and Nardole find themselves in a space station, though most of its astronauts have turned into the living dead.

While they get separated from the Tardis and manage to find a small group of survivors, we got an even more creepy vision of the future – where oxygen is tightly controlled and comes at a price.

At one point, Bill almost dies, though the Doctor takes off his helmet in order to save her – sacrificing his vision in the process.

While she is zombified, the blind Doctor manages to save the day (when doesn't he?) once again, and seemingly has his sight restored.

However, 'Oxygen' left us on a big tease about what is in the vault, and the massive revelation that he was still blind, and people were pretty shocked to say the least. Eeek.

Here, Digital Spy rounds up the biggest reactions of the episode:

The intro was emotional as an astronaut proposed to her boyfriend:

And we met space zombies (who doesn't love em?):

Bill was still getting to grips with space:

Nardole got into trouble:

Though some were not loving him so much:

In the future we see, oxygen comes at a price:

And in a distressing development, the Sonic Screwdriver was destroyed:

Even more harrowingly, we almost lost Bill:

Though it was ultimately the Doctor that was in more trouble as he saved her life:

And while he seemingly got his sight back, we were left with the bombshell that he was still blind:

Overall, consensus was fairly positive:

Doctor Who returns next Saturday (May 20) at on BBC One, with the episode 'Extremis'.

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